Question about Brother LS-1520 Mechanical Sewing Machine

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Can not get the tension right, to loose - Brother LS-1520 Mechanical Sewing Machine

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The pressure foot has to be down to adjust the tension. Sometimes the tension on the bobbin can be wrong and it can appear to be the tension on top.

Posted on Sep 10, 2010

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The thread is loose at bottom


When the bobbin thread shows on the right side, the needle tension is too tight or the bobbin thread, too loose, as shown in the middle drawing at right. When the needle thread shows on the wrong side, the needle tension is too loose or the bobbinthread, too tight, as shown in the bottom drawing at right.2 Nov 2008

Understanding Thread Tension - Threads

www.threadsmagazine.com/item/4302/understanding-thread-tension/page/all https://www.google.co.uk/webhp?sourceid=chrome-instant&rlz=1C1CHBD_en-GBGB719GB719&ion=1&espv=2&ie=UTF-8#q=Sewing+Machines+The+thread+is+loose+at+bottom

Dec 15, 2016 | Sewing Machines

2 Answers

I can't get the tension right. The stitches on the top side are too loose and the thread just pulls out.


loosen the needle thread tension of a bit
sew on a scrap bit of material until you get the tensions right
correct tension is when the bottom thread and the top thread meet at the join of the two pieces being sewn
you will only need to sew 1" to see how it is going

Nov 22, 2015 | Sewing Machines

1 Answer

Thread tension


BOBBIN TENSION: BOB THE BOBBIN CARRIER AND BOBBIN WHILE ADJUSTING TENSION. WHEN IT WILL EXTEND ONE INCH IT IS RIGHT.
TOP TENSION: USUALLY A GOOD STARTING POINT IS THREE. THE TENSION IS RIGHT WHEN THE KNOT IS FORMED IN THE CENTER OF THE FABRIC.
TOP TOO TIGHT: WILL PULL EXCESS AMOUNT OF BOBBIN THREAD UP THROUGH THE FABRIC.
TOP TOO LOOSE: THE BOTTOM OF FABRIC WILL HAVE EXCESS AMOUNTS OF THREAD. USUALLY A MESS OF THREAD.

Dec 27, 2014 | Sewing Machines

1 Answer

Brother vx 860


First, make sure the upper thread is threaded correctly. I don't have this model but see if this helps. If the bobbin thread is visible from the right side of fabric, the upper thread is too tight. If the upper thread is visible from the wrong side of the fabric, the tension is too loose. Turn the thread tension dial to the right to tighten and left to loosen upper thread. Good luck. Loverly Lou

Jul 17, 2014 | Brother Sewing Machines

1 Answer

Bobbin tension too loose


You don't give us the make and model of your machine.... so it's hard to give you decent specific advice. Secondly your question isn't making sense. If you are getting loops on the bottom your top tension isn't right(too loose) if your loops are on top your top tension isn't right.(too tight) The only time you would mess with bobbin tension is when you change thread weights significantly. Like from 40 weight to 92 weight or visa versa.



Look at your bobbin case, bobbin carrier, shuttle/carrier..... there is a spring (it's a flat piece of metal) on the spring is a small screw. Use a small screw driver and tighten the spring 1/4 turn. Loosen your top tension a couple turns. (remember right to tight, left to loose)

Mar 19, 2013 | Sewing Machines

1 Answer

My juki ddl 8700 has a tension problem. The tension post assembly is loose.


theres a set screw to the right of the tension device. maybe its loose. the screw is part of the machine body. don't look for it on the tension device. u have to get your head down in the to see it.

Sep 16, 2011 | Juki DDL-8700

1 Answer

How do you adjust the tension


Tension is adjusted with the tension dial on the right side of your machine.You would adjust the tension to your comfort. Use a piece of material to practice on, and tighten or loosen your tension till your threads look just right. If they are to tight your material will bunch up, if they are to loose you will have thread loops or very loose threads. As you get to know your machine this will come to you as easy as driving a Model T Ford. GOOD LUCK.

Jul 24, 2011 | Singer 2732 Mechanical Sewing Machine

1 Answer

The thread underneath when sewing is too loosed


Usually thread too loose on the bottom is caused by the upper tension being too loose. The top and bottom tensions work together with the top thread making the underside of the stitch seem too taunt or too loose and the bobbin thread causing the top side of the stitch to be loopy or too tight. Select a large zig zag stick and sew a couple of inches. Then examine the stitch. It should look identical on both sides. Look to see which side is drawn too tight, the zig zag being smaller on that side with threads from the bottom threads pulled through. Then adjust the two tensions so that they make a uniform, identical stitch.

Also, when the bobbin tension is right you can hold the bobbin dangling by the thread and it won't spool out to the floor but will let loose a bit with a slight flick of the wrist. Too loose it will just spool out. Too tight and it won't drop at all. When you get that set right then do the above zig zag test to see where the top tension should be set.

Mar 02, 2011 | Sewing Machines

1 Answer

I have a 7570 and cannot get the tension the bottom thread is loose and can be pulled right thru I checked the top and adjusted the bottom and nothing seems to change.


When you thread your bobbin in the bobbin case, hold it only by the thread. If the bobbin and bobbin case fall, the tension is too loose. If this is the case, turn the bobbin tension screw 1/4 turn until the bobbin and bobbin case do not fall when only holding by the thread. The top tension should be set between 4 and 5. The best way to see which one needs to be adjusted is to do a zigzag. If the thread is pulling more on top and your top tension is set between 4 and 5, the bobbin tension is too loose. If your top tension is set between 4 and 5 and it's pulling on the bottom, the bottom is too tight.

Feb 17, 2010 | PfaFF Creative 7570

1 Answer

Euro-pro 464xc bottom tension loose


Welcome to FixYa!

Loose bottom stitches come from the top, not the bottom. Seems weird, but that's the way sewing machines work.

The dial tension should be set at the mid range and make absolutely sure that you have the machine threaded correctly. Both things will cause a sloppy bottom stitch.

Thanks!

If you find my solution helpful, I'd appreciate a FixYa rating....

Jan 15, 2009 | Kenmore 12102

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